FAIR VALUE - Activity of Level 3 inputs measured on a recurring basis (Details) (Common Stock Warrants, USD $)	12 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2011
Common Stock Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at October 1,
Issuance of Series A and B Warrants	2,461,856
Adjustment resulting from change in value recognized in earnings	7,508,146	[1]		[1]
Reclassification to equity upon exercise	(7,326,553)
Balance at September 30,	$ 2,643,449

[1] Adjustment resulting from change in fair value is the amount of total gains or losses for the period attributable to the change in unrealized gains or losses relating to liabilities held at the reporting date. The unrealized gain or loss is recorded in change in fair value of warrant liability in the accompanying condensed consolidated statements of operations.